Note
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This document is better viewed at https://docs.openzeppelin.com/contracts/api/crosschain |
This directory provides building blocks to improve cross-chain awareness of smart contracts.
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{CrossChainEnabled} is an abstraction that contains accessors and modifiers to control the execution flow when receiving cross-chain messages.
The following specializations of {CrossChainEnabled} provide implementations of the {CrossChainEnabled} abstraction for specific bridges. This can be used to complexe cross-chain aware components such as {AccessControlCrossChain}.
{{CrossChainEnabledAMB}}
{{CrossChainEnabledArbitrumL1}}
{{CrossChainEnabledArbitrumL2}}
{{CrossChainEnabledOptimism}}
{{CrossChainEnabledPolygonChild}}
In addition to the {CrossChainEnable} abstraction, cross-chain awareness is also available through libraries. These libraries can be used to build complex designs such as contracts with the ability to interact with multiple bridges.
{{LibAMB}}
{{LibArbitrumL1}}
{{LibArbitrumL2}}
{{LibOptimism}}